Gas-burner attachment



(No Model.)

G. LE VESGONTE. GAS BURNER ATTACHMENT.

No. 482,580. Patented Sept. 13, 1892.

WITNESS s I/NVENTOR A TTORNEYS TNE norms Pz'rzns co., PHOTO-LINN"WAININGYDQ 0, c.

UNITED STATES PATENT OFFICE.

GEORGE LE VESCONTE, OF MINNEAPOLIS, MINNESOTA.

GAS-BURNER ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 482,580, datedSeptember 13, 1892.

- Application filed December 11, 1891. Serial No. 414,722. (110 model.)

.To all whom it may concern.-

Be it known that I, GEORGE LE VEsooNTE, of Minneapolis, in the county ofHennepin and State of Minnesota, have invented anew and ImprovedGas-Burner Attachment, of which the following is a full, clear, andexact description.

My invention relates to improvements in gas-burner attachments; and theobject of my invention is to produce an extremely simple and cheapdevice which may be secured to or connected with a gas-burner and whichwill automatically operate to turn off the supply of gas when thegas-light is blown out,lwhether through ignorance or by accident, andwhich will also hold the gas-jet closed, so that no damage can resultfrom an accidental discharge of gas.

To this end myinvention consists in certain features of construction andcombinations of parts, which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a broken side elevation, partly in section, of the apparatusembodying my invention. Fig. 2 is a broken plan view of the same. Fig. 3is across-section on theline y y in Fig. 1. Fig.4 is a cross-section onthe line min Fig. 1, and Fig. 5 is a detail plan view of theratchet-plate.

The gas is supplied to the burner through a pipe 10, which may beconnected with the ordinary supply-pipes, and this pipe is thickened andprovided with a transverse bore, as shown at 11, and mounted to turn inthis bore is a hollow valve 12, having a bore 13 opening through itsupper end and having a side port 14,'adapted to align with the bore ofthe pipe 10, so that the gas may flow upward through the valve to theburner. The

lower end of the valve terminates in a thumbpiece 15, by means of whichit may be turned in the usual way. The upper portion of the valveprojects above the pipe and is exteriorly screw-threaded, so that thejet-pipe 16 maybe screwed upon it, and the jet-pipe is prevented fromworking loose by means of a suitable jam-nut 16. The jet-pipe 16 has atits upper end the usual burner-tip 17.

Beneath the jam-nut16 is a disk 18, which has a central bore to enableit to be placed upon the valve 12, and the valve and disk are flattenedon one side of the bore, so that both may turn together. The disk has onone edge ratchet-teeth 19,which are adapted to engage similar teeth 20on the spring 21, the spring having a guide 22, which overlaps the diskand causes the teeth to register accurately, and one end of this spring21 is mounted on a pin or bolt 23, which projects through theupwardly-extending ears 24 of the slide 25, which slide is held to moveon the pipe 10. The rivet or bolt 23 also supports one end of acomposite arched band 26, which is curved upward and over the gas-burner17 and which has one end secured,as shown at 27, to a solid prolongation10 of the pipe 10. This metallic band 26 is composed of two parts, thusforming a double band, and the parts are of metals having differentdegrees of expansion-such, forinstance, as steel and brass-the two partsbeing held snugly together, so as to form a double band which willpractically be one band. It will be understood that it is not necessarythat the disk 18 be used, as a segment of a disk would operate in thesame manner.

The operation of the device is as follows:

The disk 18 and spring 21 will normally be in the position shown in Fig.2, and when the gas is turned on the valve 12 is turned so that the port14 will register with the bore of the pipe 10. When the gas is lighted,the heat expands the composite arched band 26, and the greater expansionof the brass carries with it the steel of the band and causes the freeend of the band to expand and move laterally upon the pipe 10, thuscarrying the slide with it, and the slide retracts the spring 21, sothat the teeth 20 of the spring engage the teeth 19 of the disk '18. Ifthe gaslight is extinguished, the metals composing the band 26 quicklycool,and the contraction of the metals, which will be augmented by thespring action of the steel in the band, causes the slide 25 to movequickly back to its normal position, and the teeth 20 of the spring 21,engaging the teeth on the disk 18, will turn the disk and valve 12,connected therewith, thus turning the port 14 so that it will notregister with the pipe 10, and consequently shutting off the supply ofgas.

From the foregoing description it will be seen that the device describedis of simple construction, and it will be understood that itcannotpossibly fail to work.

Having thus fully described my invention, I claim as new, and desire tosecure by Letters Patent- 1. The combination, with a gas-pipe providedwith a vertical key and a burner carried by the upper end of the key, ofthe me tallic band secured fixedly at one end to the gas-pipe and curvedupward over the burner and downward and operating connections betweenthe lower end of the band and the said key, substantially as set forth.

2. The combination, with the gas-pipe having a burner controllingrevoluble valve mounted therein, of a slide mounted on the gas-pipe, ametallic band extending above the burner, said band having one end fixedto the pipe and the other pivoted to the slide, and a ratchet connectionbetween the slide and valve, whereby the latter will be operated by themovement of the slide, substant-ially as described.

8. The combination, with the gas-pipe having a revoluble burnercontrolling valve mounted therein, of a slide mounted upon the pipe, aband formed of layers of dissimilar metals, having one end secured tothe pipe and the other end pivoted to the slide, and a ratchet mechanismconnecting the slide and valve and adapted to operate the latter,substantially as described.

4-. The combination, with the gas-pipe and the revolubleburner-controllin g Valve mounted therein, of a slide mounted on thegaspipe, a ratchet secured to the valve, a toothed spring-pawl securedto the slide and adapted to engage the ratchetteeth, and a compositemetallic band having one end secured to the gas-pipe and the oppositeend pivoted to the slide, the said band being arranged adjacent to theburner, substantially as set forth.

5. The combination, with the gas-pipe and the revoluble hollow valvemounted transversely therein, said valve having a port adapted toregister with the bore of the gaspipe and carrying the gas-burner, of aratchetdisk secured to the valve, a slide mounted on the gas-pipe andcarrying a toothed springpawl adapted to engage the ratchet-disk, and anarched band of dissimilar metals having one end secured to aprolongation of the gas-pipeand the opposite end pivoted to the slide,the said band extending above the gasburner, substantially as described.

GEORGE LE VESOONTE.

Witnesses:

ALFRED LE VEsooNTE, CARRIE LE VESCONTE.

